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Symptom Details
Flu is a respiratory infection that is caused due to a number of viruses. These viruses can enter your body through your mouth or nose. It is highly contagious and normally spread by sneezes and coughs. The most common symptom of the flu is an increase in the body temperature, and the fever may last up to a week. People who have the flu can also experience some or all of these symptoms- loss of appetite, sneezing, blocked or runny nose, sore throat, diarrhoea, pain in muscles, chills, tiredness, headache, difficulty sleeping, chesty and dry cough or full of mucus and malaise (a common feeling of uneasiness, illness and discomfort). Symptoms of the flu may last 1-2 weeks. However, the feeling of fatigue can continue for several weeks.
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